Base | Representation |
---|---|
bin | 11100000101001001… |
… | …011110111010000000 |
3 | 2212211021200202122111 |
4 | 130011021132322000 |
5 | 443222143034130 |
6 | 21503511345104 |
7 | 2115113326054 |
oct | 340511367200 |
9 | 85737622574 |
10 | 30151143040 |
11 | 11872597037 |
12 | 5a15682194 |
13 | 2ac67a4355 |
14 | 166054dc64 |
15 | bb703202a |
hex | 70525ee80 |
30151143040 has 64 divisors (see below), whose sum is σ = 72287145000. Its totient is φ = 12025810944.
The previous prime is 30151143037. The next prime is 30151143047. The reversal of 30151143040 is 4034115103.
It can be written as a sum of positive squares in 4 ways, for example, as 30028730944 + 122412096 = 173288^2 + 11064^2 .
It is a tau number, because it is divible by the number of its divisors (64).
It is not an unprimeable number, because it can be changed into a prime (30151143047) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155866 + ... + 290854.
Almost surely, 230151143040 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30151143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36143572500).
30151143040 is an abundant number, since it is smaller than the sum of its proper divisors (42136001960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30151143040 is a wasteful number, since it uses less digits than its factorization.
30151143040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 135357 (or 135345 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 22.
Adding to 30151143040 its reverse (4034115103), we get a palindrome (34185258143).
The spelling of 30151143040 in words is "thirty billion, one hundred fifty-one million, one hundred forty-three thousand, forty".
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